Exodus 39:20-21

Rotherham(i) 20 And they made two other rings of gold, and placed them upon the two shoulder–pieces of the ephod, below, on the front of the face thereof, to match the joining thereof,––above the curious girdle of the ephod. 21 And they bound the breastpiece by the rings thereof, into the rings of the ephod, with a cord of blue, that it might remain upon the curious girdle of the ephod, and the breastpiece not be removed from upon the ephod,––As Yahweh commanded Moses.